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伪赤翅甲属(Pseudopyrochroa) 隶属鞘翅目(Coleoptera) 赤翅甲科(Pyrochroidae), 目前东洋界与古北界约记录70种[1-3]。截至目前中国共记录约20种[3-4]。尽管伪赤翅甲属是赤翅甲科中物种最丰富的类群,现有关于对其的分类学研究依然较为匮乏,仅有6种伪赤翅甲幼虫形态被描述[5]。伪赤翅甲幼虫主要生活在自然死亡的原木树皮下,并以被真菌分解的木屑为食。故研究赤翅甲幼虫,尤其是伪赤翅甲幼虫的习性对了解其在生态系统中的作用提供了宝贵的资料。本研究报道了采自广西的凹角伪赤翅甲(Pseudopyrochora depressa Pic, 1914),并描述了其成虫、幼虫形态和老熟幼虫的自然生活史与成虫交配的行为学信息。
A newly Recorded Genus Pseudopyrochora Pic (Coleoptera: Pyrochroidae: Pyrochroinae) in Guangxi Zhuang Autonomous Region, China
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摘要: 2022年的春季野外考察中,于广西壮族自治区采集到赤翅甲科(Pyrochroidae)幼虫,经过饲养至成虫后鉴定为凹角伪赤翅甲(Pseudopyrochora depressa Pic, 1914),这是本种首次记录于中国大陆地区,同时也是伪赤翅甲属在广西的首次记录。本文对该种成虫、幼虫形态进行了重描述,并对其自然生活史和行为学信息进行了补充。Abstract: During field trips of spring 2022, some larvae of Pyrochroidae were found and collected from Guangxi Zhuang Autonomous Region. The species association was confirmed by rearing larvae into adult stage and identified as Pseudopyrochroa depressa Pic, 1914. This species was first recorded in Chinese mainland, while the genus was first recorded from Guangxi Zhuang Autonomous Region. In this paper, the morphology of adults and larvae of Pseudopyrochroa depressa Pic was described again, and its natural life history and behavioral information were supplemented.
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图 1 凹角伪赤翅甲雄虫正面观
图2: 凹角伪赤翅甲雌虫正面观图3: 凹角伪赤翅甲雄虫头部特写图4: 凹角伪赤翅甲幼虫标本正面观图5: 凹角伪赤翅甲幼虫标本腹面观图6: 凹角伪赤翅甲幼虫上颚特写图7: 凹角伪赤翅甲幼虫臀板正面观图8: 凹角伪赤翅甲幼虫臀板腹面观
Fig. 1 Adult male of Pseudopyrochroa depressa, dorsal view
Figure 2: Adult female of Pseudopyrochroa depressa, dorsal view; Figure 3: Male’s cranial shape of Pseudopyrochroa depressa Pic; Figure 4: Larval specimen of Pseudopyrochroa depressa Pic, dorsal view; Figure 5: Larval specimen of Pseudopyrochroa depressa, ventral view; Figure 6: Mandible shape of larva of Pseudopyrochroa depressa; Figure 7: Urogomphal plate of Pseudopyrochroa depressa larva, dorsal view; Figure 8: Urogomphal plate of Pseudopyrochroa depressa larva, ventral view
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